Struct KnobSource 

pub struct KnobSource<'a> {
    pub compile: Option<&'a str>,
    pub runtime: Option<&'a str>,
}

Where one knob’s switch variable was found: the compile-time define (option_env!) and/or the process environment. Default is “set nowhere”.

Fields

compile: Option<&'a str>

The compile-time define, if any.

runtime: Option<&'a str>

The runtime environment value, if any.

Implementations

impl<'a> KnobSource<'a>

pub fn compile(value: &'a str) -> Self

Set only by the compile-time define.

pub fn runtime(value: &'a str) -> Self

Set only by the runtime environment.

Trait Implementations

impl<'a> Clone for KnobSource<'a>

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a> Copy for KnobSource<'a>

impl<'a> Debug for KnobSource<'a>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'a> Default for KnobSource<'a>

fn default() -> Self

Returns the “default value” for a type.

impl<'a> Eq for KnobSource<'a>

impl<'a> PartialEq for KnobSource<'a>

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl<'a> StructuralPartialEq for KnobSource<'a>